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Appendix
■ Relationship between Projection Distances and Projection Screen Sizes
Notes
•The relationship between the projection distances and projection screen sizes differs depending on the lens unit (optional)
you are using.
•The projection distance and projection screen sizes listed here are only for a guide. Use them as reference when setting the
projector.
For lens unit GL-M2910G (1:1):
For lens unit GL-M2915SG (1.5:1):
Projection screen size
(Diagonal length)
Approximate projection distance unit: ft (m)
For 4:3 aspect-ratio screens For 16:9 aspect-ration screens
36.7" (approx. 93.2 cm) --- 2.53 (0.77)
40" (approx. 101.6 cm) 2.53 (0.77) 2.76 (0.84)
50" (approx. 127.0 cm) 3.18 (0.97) 3.48 (1.06)
60" (approx. 152.4 cm) 3.84 (1.17) 4.20 (1.28)
70" (approx. 177.8 cm) 4.53 (1.38) 4.95 (1.51)
80" (approx. 203.2 cm) 5.18 (1.58) 5.68 (1.73)
90" (approx. 228.6 cm) 5.87 (1.79) 6.40 (1.95)
100" (approx. 254.0 cm) 6.53 (1.99) 7.12 (2.17)
110" (approx. 279.4 cm) 7.22 (2.20) 7.87 (2.40)
120" (approx. 304.8 cm) 7.87 (2.40) 8.60 (2.62)
130" (approx. 330.2 cm) 8.53 (2.60) 9.32 (2.84)
140" (approx. 355.6 cm) 9.22 (2.81) 10.04 (3.06)
150" (approx. 381.0 cm) 9.88 (3.01) 10.79 (3.29)
160" (approx. 406.4 cm) 10.56 (3.22) 11.52 (3.51)
170" (approx. 431.8 cm) 11.22 (3.42) 12.24 (3.73)
180" (approx. 457.2 cm) 11.88 (3.62) 12.96 (3.95)
190" (approx. 482.6 cm) 12.57 (3.83) 13.68 (4.17)
200" (approx. 508.0 cm) 13.22 (4.03) ---
Projection screen size
(Diagonal length)
Approximate projection distance unit: ft (m)
For 4:3 aspect-ratio screens For 16:9 aspect-ration screens
55" (approx. 139.7 cm) --- 6.00 (1.83)
60" (approx. 152.4 cm) 5.77 (1.76) 6.30 (1.92)
65" (approx. 165.1 cm) 6.27 (1.91) 6.82 (2.08)
70" (approx. 177.8 cm) 6.76 (2.06) 7.38 (2.25)
75" (approx. 190.5 cm) 7.28 (2.22) 7.91 (2.41)
80" (approx. 203.2 cm) 7.78 (2.37) 8.46 (2.58)
85" (approx. 215.9 cm) 8.27 (2.52) 9.02 (2.75)
90" (approx. 228.6 cm) 8.76 (2.67) 9.55 (2.91)
95" (approx. 241.3 cm) 9.28 (2.83) 10.10 (3.08)
100" (approx. 254.0 cm) 9.78 (2.98) 10.63 (3.24)
105" (approx. 266.7 cm) 10.27 (3.13) 11.19 (3.41)
110" (approx. 279.4 cm) 10.76 (3.28) 11.75 (3.58)
115" (approx. 292.1 cm) 11.25 (3.43) 12.27 (3.74)
120" (approx. 304.8 cm) 11.78 (3.59) 12.83 (3.91)
125" (approx. 317.5 cm) 12.27 (3.74) 13.35 (4.07)
130" (approx. 330.2 cm) 12.76 (3.89) 13.91 (4.24)
135" (approx. 342.9 cm) 13.25 (4.04) 14.44 (4.40)
140" (approx. 355.6 cm) 13.75 (4.19) ---
145" (approx. 368.3 cm) 14.27 (4.35) ---
150" (approx. 381.0 cm) 14.76 (4.50) ---
Note: There is a 7% drop (for ceiling mount) using the anamorphic lens. Calculate 7% of the through distance.